It revealed that only 11 per cent of respondents envisaged new staff staying with them for more than five years.
The results were consistent with other statistics indicating significant staff churn.
The survey confirmed that the PR industry saw headcount drop last year, with 66 per cent of respondents failing to replace every employee to depart in the past 12 months.
A PMA Training spokesperson said respondents had been reluctant to fill vacancies while the threat of recession loomed, but that indicators for the year ahead suggested this caution had been a blip.
The estimates for the next 12 months appear more positive, with only four per cent expecting their staff numbers to drop this year, and 56 per cent predicting an increase in numbers.
Career-path development was cited as a factor in the voluntary departure of staff from 36 per cent of companies, followed by the attraction of working for bigger firms on 31 per cent, leaving the industry altogether on 27 per cent, and 26 per cent leaving because of financial concerns.